Slide carrier



Nov. A15, 1938. a, J. KLEERUP SLIDE CARRIER Filed Aug. 16, 1937 UNITED sTATEs PATENT OFFICE Bertel J. Kieerup, Chicago, lill., assignor to Society for Visual Education, Inc., Chicago, Ill., a corporation of Delaware Application August 16,1937, serial No. 159,248

' 3 claims. (o1. ca -2s) l This invention relates to improvements in pro- The holder indicated generally by reference charjectors, stereopticon machines and the like. acter 8 slides transversely of the machine in the 'I'his application isa'co'ntinuation in part of my usual manner in a passage 9 provided in the gateapplication Serial No. 88,364, filed July 1, 1936, like objectivelens housing I0 carried on a hinge which has become Patent No. 2,113,844, dated I9a. The plate holder preferably comprises two l April 12, 1938. identical plates I I and I2 which may be stamped vIn theuse of conventional projectors, stereop from sheet metal or other suitable material and tico'n machines and the like, the operator removes each having co-planar end and intermediate porthe slides or plates from the holder by grasping tions I3, I4 and I5, and offset apertured platethem at the upper edges, but in so doing his chamber defining portions IG and I1. The plates 10 fingers frequently come into contact with the exare secured together by any suitable means, as posure portions of the plates, thereby leaving by Welding'the same at their contact portions. finger marks or smudges which impair the quality The chamber portions I6 and I1 are openA at their of the projected picture when the plates are again upper ends, permitting the insertion of the slides l5 used, unless in the meantime the plates have been or plates in the usualmanner. The bottoms of l5 cleaned which may even cause permanent injury the chambers I6 and I1 are formed by flanges I8 or destruction of the slide itself. v directed inwardly of the offset portions I6 and I1 One object of the present invention is to proat the lower edgesthereof. The co-planar intervide a plate holder so constructed that the plates 'mediate portions I5 have offset portionsA I9 in the can first be raised from the holder-a distance ensame plane as the plate-chamber defining por- 20 abling the operator to grasp opposite edges theretions I6 and I1 to provide a unified structure of Without likelihood of touching upon the surhaving even surfaces to facilitate uninterrupted l faces of the plates'and smudging the same and travel of the holder 8 in the passage 9 of the proy thus eliminating the necessity for frequent cleani jector. Y

ingof finger marks. Each plate is also shown provided with a slot 25 Another object of the invention is to provide a 20 'extending from one of the light apertures plate holder ofV simple construction which is through thebottom edge of the plate. 'I'he flanges formed preferably of two identical nIclankssecured I8 are provided with upwardly extending portions together to provide plate holding chambers and 2| to supply a two-point contact for the slides or preferably havingrecesses enabling the plates to r plates affording accurate and even positioning of 30 be elevated by the thumb or iinger of the operator the slides in the carrier. Portions of the flanges to a positionwherein he can grasp the plate by I8 in register with the slots 20 are cut away to the vertical edges to avoid smearing the surfaces provide easy access for the operatorsv fingers.

of the plate by contact .with the fingers. These slots provide recesses for accommodating a My invention contemplates such'other and furfinger or thumb of the operator in engaging the 35 ther `objects as will appear as the description of bottom edge of the plates to elevate them partially my invention and apparatus proceeds. from the holder to a position wherein the plates In the drawing: can be grasped at the vertical edges and removed, Fig. l is a fragmentary side elevation of a pro`v thus avoiding any touching for handling of the 40 'jector embodying the invention;` projection portions of the slots or plates. 40

Fig. 2 is a front elevation of the improved plate The co-'planar end portions I3 of each plate are holder removed from the projector; Y provided with `stud-like members 22 adapted to Fig. 3 is a topplan view of the plate holder of bear against stop members (not shown) carried Fig. 2; arid y on the lens holder I0 'when the projecting pora Fig.4 is atransverse section taken on line 4 4 `tion of the plate is in register with the lens. 45 of Fig. 2 looking in the direction of the arrows. To insert the slide carrier 8, the gate-like lens In the use of my invention herein disclosed, I holder I0 is swung to an open position upon 'its contemplate its adaptation to any kind of projechinge, exposing4 the passage 9 for the removal and tor, stereopticon machine or the like, and the insertion of slide carriers.

A projector shown in fragment in Fig. 1 oi the The foregoing detailed'description has been 50 drawing is of a well-known type for the projection given for clearness of understanding only, and of still pictures from continuous nlm or from no unnecessary limitations shouldbe understood slides or plates. i Y i therefrom, but the appended claims should` be .The present improvement relates to holders for construed as broadly as permissible;in view of the the conventional slides or plates to be proiected. prior art. 455

Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent is:

1. A slide carrier comprising a pair of plates, each having co-planar end and intermediate portions and light apertured ofi'set portions and anges at the lower end thereof, said plates being secured, together with the co-pianar portions thereof, in face to face contact whereby the offset 10 portions define a plurality of slide receiving chamslide, saidplates being secured, together with the co-planar portions, in face to face contact and.

with the complementary oiIset portions defining slide receiving chambers, said co-planar intermediate portions having sections in the same plane as said offset portions, and slots in the bottom and one side of each chamber to receive members for partiallyelevating slides when said slides are in slide-removing position.

3. A slide carrier comprising a pair of substantially identical plates, said plates having coplanar end and intermediate light apertured offset portions, said plates being secured, together with the co-planar portions thereof, in face to face contact whereby the oiset portions define a plurality of slide receiving chambers upwardly extending anges at the base of each chamber providing a plurality of supports for each slide, each of said end portions carrying stud members adapted to bear against abutment members adjacent said carrier when said light apertured portions are properly disposed, and cutaway portions below and adjacent to said upwardly extending iianges to permit the insertion of members to partially elevate slides when said slides are in slide-removing position.

, BERTEL J. KLEERUP.l 

